Originated in Great Yarmouth. Is believed to mean "get a room" but was distinctively blurred and slurred through the one centimeter thick caravan wall. Was intended to stop an incident of anal sex from occuring whilst someone was in earshot. Can be used to prevent any type of sexual activities from taking place or one should make his own judgement as to when it is appropriate to use.

Person A is about to indulge in some sort of sexual activity...
Person A says: Oh baby i will only bum u if u insert it yourself.
Person B can be present in the room or simply in earshot of a conversation
Person B says: Hurmmmm